As life expectancy has grown, so have rosy expectations of longer retirements. But new research suggests the reality is far more complicated.

Lisa Berkman, director of Harvard’s Center for Population and Development Studies, led a team that studied the issue in a Sloan Foundation-sponsored project and produced the recent book, “Overtime: America’s Aging Workforce and the Future of Working Longer.” The collected articles, co-edited by Berkman and Beth Truesdale, a researcher at the Upjohn Institute for Employment Research and a visiting scholar at the Harvard Population Center, examine the push to work longer — coming both from retirement programs like Social Security and from the pressure exerted by personal finances — so that people ensure they have enough to last the years. We talked to Berkman about the findings. The interview has been edited for clarity and length.


Lisa Berkman

Gazette: What challenges do we, both as a society and as individuals, face as people enter a retirement that can last decades rather than years?

Berkman: For a long time, we assumed that working longer was the solution, and that most people can do that because life expectancy is longer. Then we realized we had an enormous undercount of the people who aren’t employed and who aren’t in the employment statistics. We asked ourselves at the end of the Sloan Foundation project on working longer, “Who haven’t we counted? Who hasn’t been in all the numbers and all the retirement projections?” And we realized it’s all the people who’ve dropped out of the workforce in their 50s or early 60s. And — if their life expectancy is about 76 for men and 81 for women, with around a 10-year span between those with the highest incomes and lowest — they rarely have the financial wherewithal to live for decades beyond their working years or, conversely, they may not live long enough to obtain full Social Security benefits. So this idea of financial security for many workers in retirement is not really sustainable because so many people are actually unable to work longer. That was the “aha moment” of our project, discovering that many, many people won’t be able to work even into their 60s, never mind into their late 60s.

“This birth cohort — the people turning 40 or 50 now — are actually in worse health than the people who were born a decade or two earlier were when they were in their 40s and 50s.”

Gazette: How important is recognizing the heterogeneity of the workforce?

Berkman: Heterogeneity is fundamental to the challenge of working longer. It involves two elements, one of which is that we don’t count people in employment statistics who are not looking for employment. So, people who’ve dropped out of the labor force much earlier are undercounted. They’re almost invisible. And second of all, that non-workforce is patterned by huge economic and educational gradients, so that the people who are most likely to drop out of the workforce are people with less education, in more physically demanding jobs, in less secure and more precarious jobs. And that just produces more inequality.

Gazette: And part of the issue isn’t just that these people are not working. It’s also that there’s a lot of them. Is that right?

Berkman: It’s just about half. That was the really major finding in the book. Only about 50 percent of people are steadily employed through their 50s. About another third, 35 percent or so, are in and out of the workforce in their 50s. And the rest are just not working. That applies across all income and educational gradients but hits less-educated men and women more severely. The stunning thing is that if you’re not stably employed through your 50s, the odds of you being stably employed through your 60s are slim. Furthermore, while 80 percent of those stably employed will work well into their 60s, only a third of those with unstable employment and 4 percent of those not working in their 50s will ever find another job.

Gazette: So this calls into question the belief that we’re living longer; we’re healthy longer, and can just work longer to afford our lengthy retirements?

Berkman: This birth cohort — the people turning 40 or 50 now — are actually in worse health than the people who were born a decade or two earlier were when they were in their 40s and 50s. But the surprising thing was that people dropping out of the workforce for health conditions accounted for only a part of the job loss. There are at least two other reasons that account for a lot. One of them is caregiving and family dynamics. This was especially true during COVID, when people had to take care of elders or their partners or their children. Caregiving takes a big chunk out of the capacity of people to work steadily through their 50s. The other thing is the nature of work itself. Good jobs are really essential. They give more schedule control, more workplace flexibility, less precarity. So, it’s the nature of the job, caregiving, and health losses in this next generation of middle-aged workers that raise concerns. Those things count for a lot of the job loss, and health is not the only driver here.

Gazette: Is there a solution?

Berkman: One has to do with creating “good” jobs way before retirement. We have to think about good jobs for people in their 40s and 50s if we want people to stay in the labor force. We have to create working conditions today that will enable people to stay in the workforce, even if they have health problems or caregiving responsibilities. That balance between work and life or work and family is really essential. The second bucket is: “What can we do about retirement?” Working conditions alone won’t save us from thinking about retirement policies. One thing we say repeatedly in the book is that “labor policy is retirement policy.” These two things are flip sides of the same coin. We need to address both sets of policies.

Gazette: What are some specifics of the policies that would make work better, and so retirement better?

Berkman: Our workplace policies are defined by three characteristics that we think can be improved. One of them is schedule control. Control of working hours turns out to be very, very important. Lots of countries have rules that include things like paid sick leave, flexible and part-time work, regular schedules that enable people to have more control over their schedules. In an intervention done at The Gap, colleagues in Chicago showed that giving workers more predictability and some capacity to define when they needed to go home, to have schedules a week ahead — not just-in-time schedules — helps workers stay on the job and improves productivity. Not all of our good jobs policies may be good for the bottom line, but a fair number of them may be. We really want to learn more about when do those things go hand-in-hand and when do they diverge? When do good jobs actually cost more?

Written by : Stephen Kovach

Stephen is the former CIO and current CEO of Global Advisers, LLC, an investment and wealth management based in Philadelphia, PA. He is a member of the CFA Institute and the CFP Board, and founder of, a non-profit organization that conducts primary research on global issues pertaining to human rights violations.

He graduated from Harvard with both undergraduate and graduate degrees in Government. He also completed an Undergraduate Advanced Diploma in Local History at the University of Oxford, England, and he studied Business Analytics, Economics for Managers, and Financial Accounting at the Harvard Business School.

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